Yas pwm kub ntawm kev txhaj tshuaj molding, tab sis qhov txuas tseem ceeb heev. Yog tias cov pwm yas pwm kub tswj tau zoo, kev ua haujlwm tawm ntawm cov khoom yuav yog cov khoom zoo; thiab yog tias cov pwm yas pwm tswj qhov kub tsis zoo, kev ua haujlwm tawm ntawm cov khoom yuav yog cov khoom seem.
Yas pwm
Yog li, qhov kub ntawm cov pwm yas hauv kev ua cov khoom yuav ua rau muaj kev cuam tshuam dab tsi?
1, qhov kub ntawm cov pwm yas yuav poob tus qauv raug ntawm cov khoom kom cov khoom tsim nyog tus nqi txo.
2, cov tub ntxhais pwm thiab cov kab noj hniav kub qhov sib txawv yog loj heev, cov yas shortening tsis sib xws, ua rau cov khoom ntawm dabtsi yog khoov deformation, cuam tshuam cov tsos ntawm qhov chaw.
3, qhov kub ntawm cov yas pwm yog siab dhau lawm, yuav ua rau cov khoom nyob rau hauv tus txheej txheem ntawm demolding thiab demolding tom qab pib deformation, kom nws cov duab thiab cov qauv raug poob.
4, ntawm qee cov crystalline plastics, kev siv cov pwm yas ntawm qhov kub thiab txias yog qhov tsim nyog rau cov txheej txheem crystallization, tiv thaiv kev hloov pauv hauv cov txheej txheem ntawm kev khaws cia lossis siv cov qauv.
5, ntawm cov yas hloov tau yooj yim, kev siv cov pwm yas ntawm qhov kub tsis tshua muaj peev xwm txo tau nws cov molding shortening tus nqi, txhim kho tus qauv raug ntawm cov khoom, thiab txo lub voj voog molding, txhim kho kev tsim khoom.
6, yas pwm uas tsis kub kub pwm filling, yog hais tias lub melting ceev yog tsis siab txaus, lub internal kev nyuaj siab ntawm cov khoom nce, yooj yim ua rau warpage deformation los yog daim ntawv thov ntawm cracking, tshwj xeeb tshaj yog ib co siab viscosity yas feem ntau pom tseeb.
7, qhov kub ntawm cov pwm yas yuav poob qhov fluidity ntawm cov yas yaj, kom cov khoom tsis meej, lossis tseem sau cov pwm tsis txaus, los yog nyob rau hauv cov txheej txheem ntawm cov pwm vim cov yaj pem hauv ntej kub poob ntau heev. thiab qhov pib ntawm qhov pom tseeb txias pob qij txha, uas ua rau muaj kev poob qis hauv cov khoom siv kho tshuab. Tsis tshua muaj pwm pwm kub, tab sis kuj ua rau cov khoom nto tsis du, qhov pib ntawm ntau yam defects.